What distinguishes HDFS from conventional NFS?

A protocol that enables users to access files over a network is called NFS (Network File System). Even if the files are stored on a networked device's disc, NFS clients would provide access to them as if they were local.

A distributed file system, such as HDFS (Hadoop Distributed File System), is one that is shared by numerous networked computers or nodes. Because it stores several copies of files on the file system—the default replication level is three—HDFS is fault-tolerant.

Replication/Fault Tolerance is the key distinction between the two. Failures were designed to be tolerated by HDFS. There is no built-in fault tolerance